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diff --git a/testing/web-platform/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html b/testing/web-platform/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html
new file mode 100644
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+++ b/testing/web-platform/tests/scroll-animations/css/printing/scroll-timeline-specified-scroller-print.html
@@ -0,0 +1,58 @@
+<!DOCTYPE HTML>
+<html class="reftest-wait">
+<title>A scroll timeline with a specified scroller for print</title>
+<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-timelines">
+<link rel="help" href="https://drafts.csswg.org/css-animations-2/#animation-timeline">
+<meta name="assert" content="CSS animation correctly updates values when using a specified scroller">
+<link rel="match" href="scroll-timeline-specified-scroller-ref.html">
+
+<style>
+  @keyframes anim {
+    from { transform: translateX(0px); }
+    to { transform: translateX(100px); }
+  }
+
+  #scroller {
+    scroll-timeline: timeline;
+    overflow: scroll;
+    width: 100px;
+    height: 100px;
+    scrollbar-width: none;
+  }
+
+  #contents {
+    height: 200px;
+  }
+
+  #box {
+    width: 100px;
+    height: 100px;
+    background-color: green;
+    animation: anim 1s linear;
+    animation-timeline: timeline;
+  }
+
+  @supports not (animation-timeline:timeline) {
+    #box {
+      animation-play-state: paused;
+    }
+  }
+</style>
+
+<div id="scroller">
+  <div id="contents"></div>
+</div>
+<div id="box"></div>
+
+<script>
+  window.addEventListener('load', function() {
+    const scroller = document.getElementById("scroller");
+    // Move the scroller to the halfway point.
+    const maxScroll = scroller.scrollHeight - scroller.clientHeight;
+    scroller.scrollTop = 0.5 * maxScroll;
+
+    window.requestAnimationFrame(() => {
+      document.documentElement.classList.remove("reftest-wait");
+    });
+  });
+</script>